Recommended Wiring Harness and Parts Needed to Flat Tow 2018 Ford F-150


I need a wiring harness to flat tow my 2018 Ford F-150. I also need some other parts, right? What all do I need for that?


Expert Reply:

There are a few parts you are going to need to flat tow your 2018 Ford F-150 and for a wiring harness I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 because it's coiled cord is resistant to water and corrosion, and because it comes with a 6-way and mounting bracket. You will need to use Roadmaster Brake-Lite Relay # RM-88400 as well to keep your 2018 F-150's brake signal from overriding the turn signal sent by your RV

The other parts you need are base plates and the best option for your 2018 F-150 are the Demco Tabless Base Plate Kit # DM9519318 because it will give your truck a clean look. For a compatible tow bar the Demco Excali-Bar III Non-Binding Tow Bar # DM9511013 is a fantastic option. It is designed so that the arms move independently which will help your F-150 track behind your motorhome, is non-binding, comes with safety cables, and has a 10,500 lb capacity as well as a limited lifetime warranty. I have added a photo of this tow bar for you to check out so you can see how it was looked when installed.

A supplemental braking system is a requirement in most states and I highly recommend the Roadmaster InvisiBrake # RM-8700 for this. The InvisiBrake is a proportional braking system which is a one-time install which you can leave in so you'll never have to deactivate or reactivate it.

Finally, it is likely you will need a high-low adapter such as # RM-076 to keep your tow bar level with your tow vehicle. The adapter you need is going to depend on some measurements you'll need to take. I have added a link to a help article on high-low adapters which explains the measurements you'll need, as well as a link to our page with our selection of adapters.

Click to Enlarge
expert reply by:
Kyle S

Ask The Experts a Question >>

Products Referenced in This Question

Product Page this Question was Asked From

Similar Expert Q&A Pages

See More Q&A Expert Answers >>